Multiweb handling machine



H. M. BARBER Oct. 6, 1931.

MULTIWEB HANDLING MACHINE 2 Sheets-Sheet l INVENTOR Maw/Q.

Filed Dec. 1, 1928 d ATTOR N EYS Oct. 6, 1931. BARBER 1,826,446

MULTIWEB HANDLING MACHINE Filed Dec. 1, 1928 2 Sheets-Sheet 2 INVENTOR Wk %w/ ATTORNEYS Patented Oct. 6, 1931 UNITED STATES PATENT OFFICE HOWARD M. BARBER, OF PAWCAT'UOK, CONNECTICUT, ASSIGNOR TO 0.13. COTTRELL & SONS COMPANY, OF WESTERLY, RHODE ISLAND, A CORPORATION OF DELAWARE MULTIWEB HANDLING MACHINE Application flied December 1, 1928.- Serial No. 828,039.

Heretofore where the direction of travel k of a plurality of associated webs has been changed by passing them around a common roll at the same predetermined speed, there a has been a tendency of the inner web or webs to wrinkle due to the building up of'the effective diameter of the roll by each successive web. v k

The object of m invention is to prevent this tendency of t e inner web or webs to wrinkle by providing means for controlling the speeds of the several webs, whereb the webs will be fed to the roll at. successive y increased speeds from the inner web to the outer web.

In the accompanying drawings I have shown. my invention as applied to a multitubular ba machine in which the web which is intends to be theouter layer of the bag is assed through a printing. unit and is then ed together with the lining web or webs around a paster roll to the means for foldmg the associated webs longitudinally into mul tiply tubular form from which the bag blanks are subsequently cut.

A practical embodiment of my inventlon 1 is represented in the accompanying drawings,

in which v Figs 1 and 1" represent in side elevation a multl-color printing unit, a portion of a multiwdb tubing machine and the intermediat multiweb feeding unit.

Fig. 2 represents a partialtop plan v1ew of the same.

The impression cylinder of the multi-color printing unit is denoted by 1 and'its shaft by 2. The form c linders are denoted by 3, 4 and 5. The web which-is to be printed and which is intended to form the outer layer of the bag, is fed from its supply roll 7 around the rolls 8 and 9, to and'around the impression cylinder 1;, From thence the printed web is passed around the guide rolls 10, 11 and 12 to the web gathering roll 13, It is to be understood that the speed of this web 6 is controlled by the printing unit. 4 4

In the accompanying drawings I have shown four lining web supply rolls 14, 16, 18

and 20, located between the rinting unit and the tubing machine, from w ch supply rolls their webs 15, 17, 19 and 21 are fed at prede termined successively increased s eeds by their respective pairs of coacting fiaed rolls 22-23, 24-25, 26-27, and 28-29, around their respective guide rolls 30, 31, 32

and 33 to the said web gathering roll 13 where they are brou ht into association with the printed we 6 and are fed around a common element, such as a paster roll 34, with the printed web 6 in contact with the said element or roll. These lining webs 15, 17 19 and 21 are fed at successively increased speeds, it being understood that the speed of the printed web is less than the speed of its adjacent lining web 15 and as hereinbefore expla'ned the speed of this printed web' is control ed by the printing unit.

The associated rinted and lining webs are then passed in t eir changed direction of travel from the paster roll 34 into engagement by the tube forming devices 35, 35 of the tublng machine. A pair of coacting web feedrolls 36, 37 which form a part of the tubing machine are driven at a predetermined speed, slightly greater than that of the associated webs for exerting a slip pull thereon,

to keep the webs tautwithout danger of teargear 46 on the impression cylmder shaft 2.

Another gear 47 on the impression cylinder shaft 2 meshes with a pinion 48 on a cross stud shaft 49, which shaft in turn has a bevel gear driving connection 50, 51 with a longitudinally disposed shaft 52. This shaft 52 has a plurality of bevel gear driving connections 53, 54, 55, 56,57, 58 and 59, 60 with the shafts 61, 62, 63 and 64 respectively of the upper web feed rolls 22, 24, 26 and 28,

the lower web feed rolls 23, 25, 27 and 29 being driven from the upper web feed rolls by pairs of coacting gears 65, 66, 67, 68, 69, 70 and 71, 72 of predetermined successively decreased diameters, so that the said pairs of Web feed rolls are driven at predetermined successively increased surface speeds.

The shaft 52 also has a bevel gear driving connection 73, 74 with a short vertical shaft 75, which in turn has a bevel gear driving connection 76, 77 with the shaft 78 of the lower web feed roll 36 of the tubing machine. The upper web feed roll 37 is driven from ghelower web feed roll 36 through the gears From the above description it will be seen that I am enabled to control the speed of each of the webs so that the direction of the associated webs maybe changed without danger of causing the inner web or webs to wrinkle, and the associated webs may be fed through the tubing machine by means exerting a slip pull thereon, to keep the associated webs taut without danger of tearing the same.

It is evident that various changes may be resorted to in the construction, form and arrangement of the several parts without departing from the spirit and scope of my invention, hence I do not wish to be limited to the particular embodiment herein shown gether with a pluralit of unprinted lining webs are passed with t e printed web in contact with said element, a printing unit, means for feeding the web to be printed therethrough to said element at a predetermined speed, and separate means for feeding the plurality of unprinted lining webs to said element at predetermined successively increased speeds.

3. In a multiweb handling machine, an element around which a plurality of associated printed and lining-webs are passed, a printing unit, means for feeding the web to be printed therethrough to said element at a predetermined speed, means for feeding the lining webs to the element at predetermined successively increased speeds, and means beyond the said element for exerting a slip pull on the webs to keep them taut.

4. In a mu tiweb handling machine, an element around which a plurality of associated printed and lining webs are passed, a, printing unit, means for feeding the web to be printed therethrough to said element at a predetermined speed, means for feeding the lining webs to the element at prede-,

termined successively increased speeds, a tubing machine, and means therein for exerting a slip pull on the webs to keep them taut.

5. In a multiweb handling machine, a

plurality of websup'ply rolls web feeding rolls therefor, an element arolind which the associated webs are passed, means for positively driving the web feeding rolls at predetermined successively increased surface speedsto feed the webs to the said element,

and means beyond the said element for exerting a slip .pull on the webs to keep them determined successively increased surface speeds to feed the webs to the said element, and means beyond the said element and positively driven from the said web feeding roll driving means for exerting a slip pull on the websto keep them tau In testimony that I claim the foregoing as my invention, I have signed my name this 28th day of November, A. D. 1928.

- HOWARD M. BARBER. 

